CAD tip # 4799:

Blinking (jumping, skipping) cursor in an AutoCAD drawing may be caused either by the SNAP setting (F9), or by a collision with your graphics card driver - try to update your Windows driver or lower your color depth setting in Windows.

If this behaviour is limited to a specific drawing, try set the SORTENTS variable to 0.

You may also try to disable osnaps and autohide on palettes. Or try to issue the QSAVE command.
[slow slowly stepping lazy network redraws redrawing pointer crosshairs]

Have we helped you? If you want to support the CAD Forum web service, consider buying one of our CAD applications, or our custom software development offerings, or donating via PayPal (see above).
You may also add a link to your web - like this "fan" link: